| 1. | Series connected and parallel connected centrifugal pump and their economy analyses
离心水泵串并联及经济性 |
| 2. | Heat transfer in four parallel connecting thrust chambers with radiation cooling was analyzed
摘要分析了四机?联全辐射冷却推力室的热特点。 |
| 3. | The dissertation introduces the thoughts concerning the design of dc / dc power modules that may be parallel connected
论文中介绍了dc dc电源并联的设计思想。 |
| 4. | The four same types of powers were series - parallel connected to used , they worked stably , and their power meat the request for plasma arc spraying
采用四台同型号的硅整流直流电源串并联后使用，工作稳定，功率达到了喷涂的要求。 |
| 5. | The each situation that all kinds of arc - extinction coils are parallel connected is especially analyzed , and aiming at these situations , a bran - new scheme is brought forward
本文着重分析了各个不同种类消弧线圈并联运行时遇到的具体情况，并针对这些情况提出了全新的解决方案。 |
| 6. | Power fast recovery diode , which is abbreviated to frd , is one of the key devices in modern power electronic technology . in the power electronic circuits , frd is usually parallel connected with three - end power devices as their freewheeling diode
高压功率快恢复二极管(以下简称frd )广泛地应用于电力电子电路中,作为续流二极管与三端功率器件并联使用,是现代电力电子技术中的关键器件。 |
| 7. | Guided by theoretical results , two set of laboratory prototype dc / dc modules were built up in the laboratory , parallel connected system was composed and experiments were carried out , and the obtained results verified the feasibility of the proposed approach
在理论成果的指导下自行制作了两台dc dc电源装置实验样机，在其组成的并联系统上进行了实验研究和分析，得到了相应的实验结果并验证了本方案的可行性。 |
| 8. | The dissertation studied the topology of system configuration , performed the modeling and matlab / pspice based simulation . the focus was put on the problems and their solutions that may be related to the static and dynamic current sharing of parallel connected dc power modules
进行了系统结构的设计，并联系统的建模，以及运用matlab 、 pspice软件的仿真，关注的中心是对并联直流电源的静态与动态均流等可能出现的问题进行分析并找出解决方案。 |
| 9. | The silicon controlled trigger and it s auxiliary circuit could regulate simultaneously the controlling coil current of four series - parallel connected powers , so the purpose of making four powers output in step with was achieved , and the process of increasing progressively current after lighting arc and weakening current after going out arc was realized
利用可控硅触发器及辅助电路可以同时调节串并联在一起的四台电源控制线圈的电流，达到四台电源同步输出的目的，并且实现了等离子弧喷涂引弧时电流递增和熄弧时电流衰减的过程。 |
| 10. | Abstract : the concept of equivalent heat channel is adopted to simplify the prdiction of thermal contact resistance . after establishing the model of contact surface , the definitive parameters in equivalent heat channel of the thermal contact resistance are gained . and the whole thermal contact resistance is composed of the parallel connected equivalent heat channels
文摘:采用当量热流通道的概念对接触热阻的预测进行简化分析，即对表面情况建立相应的表面模型后，确定出当量热流通道上的各个参数，整个接触面上的接触热阻即可视为有多个当量热流通道形成的接触热阻并联而成，从而可以预测出两个物体间的接触热阻。 |
